html, body {
  height: 100%;
  font-family: PingFangSC, Microsoft Yahei,  Source Han Sans CN, Robot, Arial;
}

::-webkit-scrollbar-track-piece { //滚动条凹槽的颜色，还可以设置边框属性
  background-color:transparent;
}
::-webkit-scrollbar {//滚动条的宽度
  width:8px;
  height:8px;
}
::-webkit-scrollbar-thumb {//滚动条的设置
  background-color:#DFE6EA;
  background-clip:padding-box;
  min-height:28px;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background-color:#DFE6EA;
}